From dea4055dab9df1371f05a71ec7b137a4dac45521 Mon Sep 17 00:00:00 2001
From: Sylfrena <sylphrenadin@gmail.com>
Date: Fri, 29 Mar 2019 04:22:21 +0530
Subject: [PATCH] Add troubleshooting to docs for higher Ruby versions

---
 .gitignore      | 1 +
 CONTRIBUTING.md | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/.gitignore b/.gitignore
index 3d34f444a..6809a4f30 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ doc/
 vendor/
 profile/out/
 coverage/
+.ruby-version
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 9eaafc29a..72a5906e4 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -22,12 +22,21 @@ And run the test suite (should be all green with pending tests):
 
 If you have problems installing nmatrix, please consult the [nmatrix installation wiki](https://github.com/SciRuby/nmatrix/wiki/Installation) or the [mailing list](https://groups.google.com/forum/#!forum/sciruby-dev).
 
+**NOTE**: `Daru` is compatible with Ruby versions < 2.5; for later Ruby versions it breaks, returning the following error in versions >= 2.5.
+```
+/gems/packable-1.3.10/lib/packable/extensions/io.rb:86:in `pos': Illegal seek @ rb_io_tell - <STDOUT> (Errno::ESPIPE)
+```
+To reproduce this issue or explore this error further, head over to 
+[issue #500](https://github.com/SciRuby/daru/issues/500),
+[issue #503](https://github.com/SciRuby/daru/issues/503). Also, if you want to fix this issue, then please discuss it here : [#505](https://github.com/SciRuby/daru/issues/500)
+
 While preparing your pull requests, don't forget to check your code with Rubocop:
 
   `bundle exec rubocop`
   
 [Optional] Install all Ruby versions which Daru currently supports with `rake spec setup`.
 
+
 ## Basic Development Flow
 
 1. Create a new branch with `git checkout -b <branch_name>`.